<html>
    <head>
        <title>Testing Script.aculo.us effects</title>
        <script language = "JavaScript" type = "text/javascript" src = "prototype.js"></script>      
        <script language = "JavaScript" type = "text/javascript" src = "effects.js"></script>      
    </head>
    <body>
        <a href = "http://www.jsworkshop.com" onMouseOver = "window.alert('you moved ouver the link.')">
        click here</a>
        <a href = "http://www.google.com/" id = "link1">clicjk</a>
        <a href = "http://www.jsworkshop.com/" onClick = "return(window.confirm('Ara you sure?'))">click here three.</a>
    <script language = "JavaScript" type = "text/javascript" >   
    obj = document.getElementById('link1')
    obj.onclick = mousealert
    function mousealert () {
        alert('You clicked the mouse!')
    }    
    document.onmousedown = 'mousealert'
    </script>
    </body>
</html>